The term ”developmental disability” means a severe, chronic disability of an individual that-

(I) is attributable to a mental or physical impairment or combination of mental and physical

(ii) is manifested before the individual attains age 22;

(iv) results in substantial functional limitations in 3 or more of the following areas of major life

(I) Self-care.

(II) Receptive and expressive language.

(III) Learning.

(IV) Mobility.

(V) Self-direction.

(VI) Capacity for independent living.

(VII) Economic self-sufficiency; and

(v) reflects the individual’s need for a combination and sequence of special, interdisciplinary, or generic services, individualized supports, or other forms of assistance that are of lifelong or extended duration and are individually planned and coordinated